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Service parts
Indoor air filter
1. Remove any dust adhered on the filter by using a vacuum cleaner or
wash in lukewarm water (below 40˚C) with neutral cleaning detergent.
2. Rinse well and dry the filter before placing it back onto the unit.
3. Do not use gasoline, volatile substances or chemical to clean the filter.
1. Clean any dirt or dust on the grille or panel by wiping it using soft cloth
Indoor unit
soaked in lukewarm water (below 40˚C) with neutral detergent solution.
2. Do not use gasoline, volatile substances or chemical to clean the indoor
unit.
If any malfunction of the air conditioner unit is noted, immediately switch off the power supply to the unit.
Check the following fault conditions and causes for some simple troubleshooting tips.
Fault
1. The compressor does not start operate after 3 minutes
from starting the air conditioner unit.
2. The air conditioner unit does not operate.
3. The air flow is too low.
4. Discharge air flow has bad odor.
5. Condensation on the front air grille of the indoor unit.
6. Water flowing out from the air conditioner unit.
If the fault persists, please call your local dealer / serviceman.
The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase sequencer) is
fitted to prevent incorrect wiring of the electrical phases. When the three phases are not connected correctly, the phase
sequencer operates, and the unit will not start. This device is located in the control box of the outdoor unit.
The following table shows the LED indicator light for phase sequencer under normal operation and fault conditions.
PW
LED
Description
(Red)
Normal operation
Reverse phase
T phase missing
S phase missing
R phase missing
+
S &T phase missing
+
Overload
+
Sensor missing
ON
NOTE
1. "+" indicates additional functions for PP01 phase sequencer.
2. When R phase missing, no LED or buzzer will indicate the error, but relay 71 and relay 81 will cut off.
All manuals and user guides at all-guides.com
SERVICE AND MAINTENANCE
Maintenance procedures
TROUBLESHOOTING
- Protection against frequent starting. Wait for 3 to 4
minutes for the compressor to start operating.
- Power failure, or the fuse need to be replaced.
- The power plug is disconnected.
- It is possible that your delay timer has been set incorrectly.
- If the fault persist after all these verifications, please
contact the air conditioner unit installer.
- The air filter is dirty.
- The doors or windows are open.
- The air suction and discharge are clogged.
- The regulated temperature is not high enough.
- Odors may be caused by cigarettes, smoke particles,
perfume etc. which might have adhered onto the coil.
- This is caused by air humidity after an extended long
period of operation.
- The set temperature is too low, increase the temperature
setting and operate the unit at high fan speed.
- Switch off unit and call dealer.
PHASE SEQUENCER (OPTIONAL)
P_T
P_R
P_S
(Yellow)
(Yellow)
(Yellow)
High discharge temperature. Check the refrigerant system.
OFF
1-20
Causes / Action
Actions
-
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Plug in sensor.
Fast Blink
Period
At least once every
2 weeks. More
frequently if
necessary.
At least once every
2 weeks. More
frequently if
necessary.
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